Kev tsim kho ntawm chav tsev thib ob hauv chav nrog lub square me muaj qhov zoo ntawm thaj chaw, lub koom haum ntawm thaj chaw ua haujlwm, qhov muaj peev xwm ua haujlwm ntawm lawv tus kheej Rau cov nqi me. Kev siab siab ntawm lub qab nthab los ntawm 3 metres ntawm 20 centimeters yog qhov zoo tshaj plaws hauv kev tua ntawm txoj haujlwm no.